203383-33-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 203383-33-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,3,8 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 203383-33:
(8*2)+(7*0)+(6*3)+(5*3)+(4*8)+(3*3)+(2*3)+(1*3)=99
99 % 10 = 9
So 203383-33-9 is a valid CAS Registry Number.
InChI:InChI=1/C17H21N5O6S/c1-11-7-8-13-12(10-11)4-2-6-15(13)29(27,28)21-14(16(23)24)5-3-9-19-17(18)20-22(25)26/h2,4,6-8,10,14,21H,3,5,9H2,1H3,(H,23,24)(H3,18,19,20)